Question

Acid rain discolors and disfigures a limestone statue.

Which type of weathering is this?


A. mechanical

B. physical

C. biological

D. chemical

Answer 1

Question:-

Acid rain discolors and disfigures a limestone statue.

Which type of weathering is this?

Options:-

A. mechanical

B. physical

C. biological

D. chemical

Answer:- Option D. Chemical

Explanation:-

1. When NO2 and SO3 in the air mixes with rain drops they form acids nitric acid and sulphuric acid respectively
2. when these acids fall in the form rain they are called acid rain
3. Acid rain when fall on the limestone statues they crode away the minerals from them after reacting with them
4. They change insoluble compounds into soluble which is a chemical reaction
5. Weathering due to chemical reaction is called chemical weathering .